Design, activity, and 2.8 A crystal structure of a C2 symmetric inhibitor complexed to HIV-1 protease

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Science  03 Aug 1990:
Vol. 249, Issue 4968, pp. 527-533
DOI: 10.1126/science.2200122


A two-fold (C2) symmetric inhibitor of the protease of human immunodeficiency virus type-1 (HIV-1) has been designed on the basis of the three-dimensional symmetry of the enzyme active site. The symmetric molecule inhibited both protease activity and acute HIV-1 infection in vitro, was at least 10,000-fold more potent against HIV-1 protease than against related enzymes, and appeared to be stable to degradative enzymes. The 2.8 angstrom crystal structure of the inhibitor-enzyme complex demonstrated that the inhibitor binds to the enzyme in a highly symmetric fashion.

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